The document discusses MPEG-7, a standard for multimedia metadata. It provides an overview of MPEG-7 descriptors for describing visual and audio content, as well as multimedia communities that promote MPEG-7 adoption and interoperability. The document also outlines various applications of MPEG-7 for multimedia content management, description, navigation and retrieval.
1. MPEG-7 Services in Community Engines Ralf Klamma Leuven, Belgium October 26, 2007
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7. Multimedia management features of MPEG-7 Basis Schema Links&Media Basic Basic tools localization tools data types [IEEE 02] User interaction User preferences Usage History Navigation & Access Index Views Variations Content organization Collections Models Creation & Production Content Management Media Usage Content description Structural aspects Semantic aspects
8. XML Schema Language - Descriptors, DS, and DDL DDL DS DS DS D D D D DS D D Structural aspects of domains Domain spec. MPEG-7 extension MPEG-7 descriptor or DS non MPEG-7 descriptor or DS
9. Schema Tools Basis Schema Links&Media Basic Basic tools localization tools data types [IEEE 02] User interaction User preferences Usage History Navigation & Access Index Views Variations Content organization Collections Models Creation & Production Content Management Media Usage Content description Structural aspects Semantic aspects
13. Annotations <TextAnnotation> <StructuredAnnotation> <Who><Name>Spain</Name</Who> <Where><Name>AC</Name></Where> <When><Name>Mar15</Name></When> </StructuredAnnotation> </TextAnnotation> Structured Annotation <TextAnnotation> <KeywordAnnotation> <Keyword>score</Keyword> <Keyword>Sweden</Keyword> <Keyword>Spain</Keyword> </KeywordAnnotation> </TextAnnotation> Keyword Annotation <TextAnnotation xml:lang="en-us"> This is a nice apartment. </ TextAnnotation > <TextAnnotation xml:lang="en-uk"> This is a nice flat. </TextAnnotation > Free Text Annotation
14. Textual Annotations Score Spain A goal Sweden Against Governer Dependent Governer Dependent Dependent Dependent Dependency structure for "Spain scored a goal against Sweden“
15. Content Management and Description Basis Schema Links&Media Basic Basic tools localization tools data types [IEEE 02] User interaction User preferences Usage History Navigation & Access Index Views Variations Content organization Collections Models Creation & Production Content Management Media Usage Content description Structural aspects Semantic aspects
27. Views Multimedia program Multimedia program View Filtering Partition Region View Signal Source Signal View graphs View trees View sets Source Target View decompositions
29. Variations Variation Set Multimedia program Variation Fidelity Relationship Priority Multimedia program Variation Fidelity Relationship Priority Multimedia program Image Video Video Source Variation Variation
30. Content Organization Basis Schema Links&Media Basic Basic tools localization tools data types [IEEE 02] User interaction User preferences Usage History Navigation & Access Index Views Variations Content organization Collections Models Creation & Production Content Management Media Usage Content description Structural aspects Semantic aspects
32. Content Collections and Collection Structure Different collection can be combined according to their collection structure Collection A Collection B Collection C R ac R bc R ab
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34. Cluster Model – Relevance Feedback After relevant content is marked by the user, the retrieval system can deliver more precise content clusters
35. State Transition Models State Transition models can be used for summarizing or classifying transitions of events on the timeline of a video sequence Video sequence with events, e.g. staging of an actor A C B p ab p ac p bc p ca Label Scene A C B Event A Event B Event C
36. User Interaction Basis Schema Links&Media Basic Basic tools localization tools data types [IEEE 02] User interaction User preferences Usage History Navigation & Access Index Views Variations Content organization Collections Models Creation & Production Content Management Media Usage Content description Structural aspects Semantic aspects
37. Multimedia System with User Interaction Content filter & search engine Content browsing engine User profiling engine Local multimedia system Multimedia content description Multimedia content Multimedia content description Multimedia content description User preferences User action history Other devices Content/service provider User
38. Usage History Usage history 1, * 0, * UserIdentifier User action history Observation period User action list ActionType Action data item User action ProgramIdentifier ActionTime 1, * 1, * 0, *
40. Mapping Usage Hisotries on User Preferences Usage history description UserAction Program ID 1 UserAction Program ID 2 Content description Program ID 1 Title 1 Genre A Content description Program ID 2 Title 2 Genre B User preference description Classification Preferences Genre A preference Value a Genre B preference Value b